package com.wwj.reggie.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.wwj.reggie.common.R;
import com.wwj.reggie.entity.User;
import com.wwj.reggie.service.UserService;
import com.wwj.reggie.utils.SMSUtils;
import com.wwj.reggie.utils.ValidateCodeUtils;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestBody;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;
import java.util.Map;
import java.util.concurrent.TimeUnit;

@Slf4j
@RestController
@RequestMapping("/user")
public class UserController {

    @Autowired
    private UserService userService;

    @Autowired
    private RedisTemplate redisTemplate;

    /**
     * 发送手机短信验证码
     * @param user
     * @return
     */
    @PostMapping("/sendMsg")
    public R<String> sendMsg(@RequestBody User user, HttpSession session){
        //获取手机号
        String phone = user.getPhone();

        if (StringUtils.isNotEmpty(phone)){
            //随机生成验证码
            String code = ValidateCodeUtils.generateValidateCode(4).toString();
            log.info("code = {}", code);

            //调用短信服务api发送短信
//            SMSUtils.sendMessage("沈建第二餐饮中心外卖", "", phone, code);

            //将验证码保存到session
//            session.setAttribute(phone, code);

            //将生成的验证码缓存到redis中,并设置有效期为5分钟
            redisTemplate.opsForValue().set(phone, code, 5, TimeUnit.MINUTES);


            return R.success("");
        }

        return R.error("");
    }

    /**
     * 移动端用户登录
     * @param map
     * @param session
     * @return
     */
    @PostMapping("/login")
    public R<User> login(@RequestBody Map map, HttpSession session){
        log.info(map.toString());

        //获取手机号
        String phone = map.get("phone").toString();

        //获取验证码
        String code = map.get("code").toString();

        //获取session中保存的验证码
//        Object condeInSession = session.getAttribute(phone);

        //从redis中获取缓存的验证码
        Object condeInSession = redisTemplate.opsForValue().get(phone);

        if (condeInSession != null && condeInSession.equals(code)){
            //判断用户是否为新用户
            LambdaQueryWrapper<User> lqw = new LambdaQueryWrapper<>();
            lqw.eq(User::getPhone, phone);

            User user = userService.getOne(lqw);

            if (user == null){
                user = new User();
                user.setPhone(phone);
                user.setStatus(1);
                userService.save(user);
            }
            session.setAttribute("user", user.getId());

            //如果用户登录成功删除缓存的验证码
            redisTemplate.delete(phone);

            return R.success(user);
        }

        return R.error("");
    }

    /**
     * 员工退出
     * @param request
     * @return
     */
    @PostMapping("/loginout")
    public R<String> logout(HttpServletRequest request){

        //1、清除session中当前登录用户的id
        request.getSession().removeAttribute("employee");

        return R.success("退出成功");
    }
}
